diff --git a/Include/intobject.h b/Include/intobject.h
index 781a4b5..507a9e2 100644
--- a/Include/intobject.h
+++ b/Include/intobject.h
@@ -60,6 +60,7 @@
 #define PyInt_Check(op) ((op)->ob_type == &PyInt_Type)
 
 extern DL_IMPORT(PyObject *) PyInt_FromString Py_PROTO((char*, char**, int));
+extern DL_IMPORT(PyObject *) PyInt_FromUnicode Py_PROTO((Py_UNICODE*, int, int));
 extern DL_IMPORT(PyObject *) PyInt_FromLong Py_PROTO((long));
 extern DL_IMPORT(long) PyInt_AsLong Py_PROTO((PyObject *));
 extern DL_IMPORT(long) PyInt_GetMax Py_PROTO((void));